This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Clark, J. H. Articles by Mider, G. B. Search for Related Content PubMed PubMed Citation Articles by Clark, J. H. Articles by Mider, G. B.

The Effect of Ultraviolet Radiation on the Production of Spontaneous Mammary Tumors in C3H Mice^*

( Division of Cancer Research, Departments of Biology and Surgery, University of Rochester, Rochester, N.Y.)

We are left, therefore, with good evidence that C3H mice exposed to ultraviolet rays developed spontaneous mammary cancers more rapidly than did those reared in either light or dark environments in which they received no ultraviolet irradiation. The differences are not due solely to a more rapid rate of tumor production or to a decreased latent interval, but to a combination of both.

^* Aided by a grant from the Jane Coffin Childs Memorial Fund for Medical Rescarch.

Received 3/ 8/52.